Starlink Digital Edition $44.99 Deluxe Digital Edition $59.99 on PSN and Xbox Live
While the physical edition has already been on sale the digital editions are now 25% off on PSN and Xbox Live. Supposedly the Switch Digital Version will also be this price too but it is not confirmed or live yet as far as I know. I believe it will be live on 11/22.
The main difference between the physical and digital version is the physical version comes with the toys but less in game content. The digital version had no toys but much more in game content. So it really depends if you want the physical toys are not. But if not, then digital is a way better deal. The links are for the regular version but if you want the Deluxe it's available too.
Here's the differences between the two: